Every server in the official MCP Registry. Ranked by whether they actually work: we connect to each one and publish what happens.
18,698 servers
Technical SEO tools for AI agents: structured data, meta tags, robots, SERP truncation. No API key.
Discover MCP servers + tools, auto-install into any client, pay for x402 endpoints in USDC.
HTTP MCP gateway: principal on tools/call + SSE, allowlists, vault rotate, CHP gates.
PayPay QR payments for AI agents: QR codes, status, refunds, cancels. Bilingual JP/EN.
37 tools to read, create, merge, split, watermark, fill, redact & search PDFs. Local, no API key.
Audit Excel workbooks: formula dependency tracing, circular references, risk smells. Local only.
Wraps the taskswarm CLI as a single generic MCP tool for multi-agent task coordination.
PRD verification and host-driven generation with multi-judge consensus across 17 MCP tools.
MCP server for Amazon S3 and S3-compatible endpoints (LocalStack, MinIO). Single Go binary.
Search Gera marketplaces and create consent-first booking intents. No payment taken by server.
AI prompt engineering game: challenges, leaderboards, community prompts.
MarkItUp AI image annotation and marketing-visual generator (variations, outpaint, bg-removal).
Charge AI agents per-call without accounts. PoW solve = free tier, Lightning = paid tier.
Network-egress firewall for agent tools: check URLs against a declarative policy.
Comprehensive MCP server for the Robokassa payment gateway (18 tools, full API coverage).
MCP server for New Caledonia open data (data.gouv.nc)
GPU-accelerated MCP server for molecular dynamics, N-body simulations, and particle systems
Search and work in Gmail, Calendar, Drive, Docs, Sheets and Slides across several Google accounts.
ACME certificate lifecycle for agents: order, HTTP-01/DNS-01 validation, download, renewal.
Google video search across websites, with titles, links and durations. Paid FlashData API.
Text-to-speech, speech-to-text, audio-to-face lipsync, and motion-capture clips for 3D agents.
Search TV series on tvsubtitles.net, read a season's subtitle coverage and one record. No API key.
A Bitrix24 portal's CRM for agents over MCP. Sign in with the b24 CLI first.
Google Search Console MCP server: 20 read tools, no write tools.
Unofficial read-only TGJU: live Iranian gold, coin, currency and crypto prices with daily history.
Search, read and act on Apple Notes — folders, attachments, writes off by default
Inspect and manage local files and folders inside allowed roots on macOS.
Verify PDF signatures, detect tampering, and identify PDF/A and PAdES conformance levels.
MCP server for the Google Sheets API: read and write ranges, sheets, formatting, charts, sharing.